> Does somebody know of a modern Unix system which
truly focuses on
> resources consumption, which is lean and fast?
There are several linux projects, most recently for 2.6 which focus
on absolutely minimal ram usage.
http://www.selenic.com/linux-tiny/
"damn small linux" is also pretty small disk wise.
http://www.damsmalllinux.org
Especially, I'd like to hear about an open-source C
compiler that (a)
supports at least sparc, i386, mips, and arm - those being the CPUs I
care about at the moment - and (b) is not a resource pig.
I assume you've seen tcc
http://fabrice.bellard.free.fr/tcc/
-brad